So I just did my first AG brew using the BIAB method for an Oatmeal Cookie Brown, (recipe is here: http://www.northernbrewer.com/documenta … eBrown.pdf )
The recipe was for a 3 gallon batch, which I modified for a 5 gallon batch by multiplying each ingredient by 1.67. My post-boil volume was about 5.5 gallons, and my OG ended up around 1.08, which according to BrewersFriend.com is roughly 76.2%, which I’m assuming is pretty good from what I’ve read. My question is, the original 3 gallon recipe said I should have a target OG of 1.066, which leads me to ask, why the discrepancy? Not that I mind having a higher gravity beer, but I’m just puzzled as to why it came out so much higher than it should have. Any thoughts?